The codes in the following examples have to be added to the end of the functions.php file of your WordPress theme.
By doing so your changes will not be overwritten when you install a new version of Social Login.

You can find this file in your WordPress administration area: 

	Appearance \ Editor \ Theme Functions (functions.php)



//*******************************************************************************
// Social Login: Use your own CSS to customize the icons
//*******************************************************************************
 function oa_social_login_set_custom_css($css_theme_uri)
 {
 	//Replace the URL by an URL to your own CSS Stylesheet
	$css_theme_uri = 'http://public.oneallcdn.com/css/api/socialize/themes/buildin/connect/large-v1.css';
	
	//Done
	return $css_theme_uri;
 }
 
 add_filter('oa_social_login_default_css', 'oa_social_login_set_custom_css');
 add_filter('oa_social_login_widget_css', 'oa_social_login_set_custom_css');
 add_filter('oa_social_login_link_css', 'oa_social_login_set_custom_css');



//*******************************************************************************
// Social Login: Restrict access and allow only email addresses of a specific domain
//*******************************************************************************
function oa_social_login_filter_new_user_email ($user_email)
{
	//Only users with social network accounts having an email address ending in @gmail.com may register
	if ( ! preg_match ('/@gmail\.com$/i', trim ($user_email)))
	{
		trigger_error ('This email address may not be used to register', E_USER_ERROR);
	}
	return $user_email;
}
add_filter('oa_social_login_filter_new_user_email', 'oa_social_login_filter_new_user_email');



//*******************************************************************************
// Social Login: Change the default password for users created by Social Login
//*******************************************************************************
function oa_social_login_set_new_user_password ($user_password)
{
	//This the the default behavior
	$user_password = wp_generate_password ();
	
	//This is an example for a custom setting
	$user_password = substr(str_shuffle('abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789') , 0 , 10);

	//The new user will be assigned this password
	return $user_password;
}
add_filter('oa_social_login_filter_new_user_password', 'oa_social_login_set_new_user_password');



//*******************************************************************************
// Social Login: Change the default role for new users
//*******************************************************************************
function oa_social_login_set_new_user_role ($user_role)
{
	//This the the default behavior, usually the default role is subscriber
	$user_role = get_option('default_role');

	//This is an example for a custom setting with two roles
	$user_role = 'author editor';

	//The new user will be assigned this role
	return $user_role;
}
add_filter('oa_social_login_filter_new_user_role', 'oa_social_login_set_new_user_role');
	
	
	
//*******************************************************************************
// Social Login: Custom redirections
//*******************************************************************************

//Redirection for new users
function oa_social_login_set_redirect_url_new_users ($url, $user_data)
{
	//Force the url to something else
	$url = 'http://my-website.com/welcome-new-user/';

	//New users will be redirected here
	return $url;
}
add_filter('oa_social_login_filter_registration_redirect_url', 'oa_social_login_set_redirect_url_new_users', 10, 2);


//Redirection for existing users
function oa_social_login_set_redirect_url_existing_users ($url, $user_data)
{
	//Force the url to something else
	$url = 'http://my-website.com/welcome-back/';
	
	//Returning users will be redirected here
	return $url;
}
add_filter('oa_social_login_filter_login_redirect_url', 'oa_social_login_set_redirect_url_existing_users', 10, 2);



//*******************************************************************************
// Social Login: Action called before adding a new user
//*******************************************************************************

//This function will be called before Social Login adds a new user
function oa_social_login_do_before_user_insert ($user_data, $identity)
{
	//These are the fields for the WordPress database
	print_r($user_data);
	
	//This is the full social network profile of this user
	print_r($identity);
}
add_action ('oa_social_login_action_before_user_insert', 'oa_social_login_do_before_user_insert', 10, 2);
	
	
	
//*******************************************************************************
// Social Login: Action called after having added a new user
//*******************************************************************************

//This function will be called after Social Login has added a new user
function oa_social_login_do_after_user_insert ($user_data, $identity)
{
	//These are the fields from the WordPress database
	print_r($user_data);
	
	//This is the full social network profile of this user
	print_r($identity);
}
add_action ('oa_social_login_action_after_user_insert', 'oa_social_login_do_after_user_insert', 10, 2);
	
	
	
//*******************************************************************************
// Social Login: Action called before logging in the user
//*******************************************************************************

//This function will be called before Social Login logs the the user in
function oa_social_login_do_before_user_login ($user_data, $identity, $new_registration)
{
	//true for new and false for returning users
	if ($new_registration)
	{
		echo "I am a new user";
	}
	else
	{
		echo "I am a returning user";
	}

	//These are the fields from the WordPress database
	print_r($user_data);
	
	//This is the full social network profile of this user
	print_r($identity);
}
add_action ('oa_social_login_action_before_user_login', 'oa_social_login_do_before_user_login', 10, 3);
	
	
	
//*******************************************************************************
// Social Login: Action called before redirecting the user
//*******************************************************************************

//This function will be called before Social Login redirects the user
function oa_social_login_do_before_user_redirect ($user_data, $identity, $redirect_to)
{
	echo "User will be redirected to ".$redirect_to;

	//These are the fields from the WordPress database
	print_r($user_data);
	
	//This is the full social network profile of this user
	print_r($identity);
}
add_action ('oa_social_login_action_before_user_redirect', 'oa_social_login_do_before_user_redirect', 10, 3);